<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <form>
      <input type="file" name="avatar" accept="image/*" placeholder="请选择头像" />
      <button>上传文件</button>
    </form>
    <img src="" alt="" class="avatar" style="width: 500px" />
  </body>
  <script src="./js/axios.js"></script>
  <script>
    const form = document.querySelector('form');
    const img = document.querySelector('.avatar');

    form.addEventListener('submit',function(e){
      e.preventDefault()

      const fd = new FormData(this)

      // console.log(fd.get('avatar'));
      axios({
        url:'http://ajax-api.itheima.net/api/file',
        method:'POST',
        data:fd
      }).then(({data:res})=>{
        console.log(res);
        const url = res.data.url
        img.src = url
      })


    })

 
  </script>
</html>
